tension control system for universal mill

Home tension control system for universal mill

During finishing operations strip is rolled at the same time in all the stands, and loopers are used between them in order to assure a constant mass flow and to maintain strip tension at the preset value. The paper discusses the design and application of an innovative tension control looper and presents the analysis and optimization of this system.


Precise tension control is vital to ensure the quality of wound rolls of material. Slitting, winding, coating, laminating and embossing all require accurate tension control systems. Universal Converting Equipment developed closed loop tension control …


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mills between the mill stands to control strip tension deviations caused by variations in incoming material and mill settings. Tension deviations cause thickness and width variations in the finished strip. Most looper systems estimate the strip tension based on looper actuator force and looper arm position.


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Abstract This article discusses the stages of tuning and adjustment of tension control systems for winders of cold-rolled sheet mills using experimental frequency identification of the control object. To successfully solve the problems of …


THE MECHANICS OF TENSION CONTROL By Jeff Damour CONVERTER ACCESSORY COPORATION Wind Gap, PA USA Introduction This presentation is a basic tutorial in the mechanics of web tension control. We will discuss: 1) What is tension? 2) Why is tension important to me? 3) Where is tension control important in the process? 4) How do tension controls work?


Aimed at the complex demand of hot strip rolling mill in practicing, the configuration of the coiler and the technological process is analyzed. The arithmetic of coiling tension and the control process is introduced. The frame of the tension adjusting system is given. The coiler control system hardware is designed. The system is designed scientifically with steady control and meets demand of ...


High quality, performance driven products combined with industry leading web tension control knowledge and expertise to make your machines run at maximum efficiency, reducing waste and increasing your productivity and profitability. Whether its individual products, complete tension control systems or answering your questions, we are here for you.


• The type of milling machine most commonly found in student shops is a vertical spindle machine with a swiveling head. Although there are several other types of milling machines, shown is the vertical milling machine. • A milling machine removes metal by rotating a multi-toothed cutter that is fed into the moving workpiece.


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Preparing control software packages as above, TMEIC has supported high control requirements for high quality rod products. Bar and wire rod mill finishing mill automation is an area of expertise of TMEIC. For a non-destructive inspection, TMEIC has supported an Ultrasonic Testing System based on a broad range of successful applications.


Modeling and Control of Multi Stage Rolling Mill Process. Sheet Rolling Mill processes involve progressive thickness reduction of continuous sheet metal in multiple stages. Some of the control variables of interest are exit thickness, throughput and the tension in the sheet as it passes from one stage to the other.


The data control system of the mill recorded reso-nant vibration three times in the stand 4 during rolling according to the mode of Table 1, and the rolling speed oscillogram (Figure 1) shows that mill operators dropped the speed from 15 m/s to 11 m/s to prevent chatter development to dangerous levels.


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looper and tension control system tension looper roll M Fig. 1. Tension and looper control in finishing mills Where, ASR: Automatic Speed Regulator, ACR: Automatic Current Regulator from mass flow unbalance. For example, in the case of low tension, the looper angle increases to get proper tension, resulting in the stable


Fig.4- Advantages of 6-high Universal Crown Control Mill (UCM) on strip flatness Complete automation and process control for Tandem Cold Mills Plant productivity and product quality are substantially depending on the quality of plant automation, process control, …


Stable and high accurate tension control solution through ... Complete processing line control system Complete tandem rolling mill technological control system Level2 ... Universal Plaza, 10 Jiuxianqiao Lu Chaoyang District, Beijing, 100016, P.R.China Tel: +86 10 84566688


The finished studies prove that size alignment is provided with the tension control system affecting speed of the further stands. ... systems of edging and horizontal rolls of universal mill stand ...


In rolling mill drive system, the motor and the roller are connected through the driving system, which consist of gearwheel box, universal couplings, arc-gear synchronous belt and so on. For reflecting main influencing factors of the actual process, the connecting part can be regarded as a gear pair system, which is composed of the active gear ...


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control. When the tension control switch to the speed control, to cancel the additional speed Δn. In the working process of the coiler, from the strip head into the mandrel set up tension to the strip tail left the last finishing mill, the coiler entered the stage of tension control. Strip …


Tensile testing with strain measurement techniques that can determine critical material properties including elastic modulus, tensile strength, elongation at break, and Poisson's ratio.


sides of the mill. Under the tension conditions established by the above control systems, a desired elongation is realized by control-ling the rolling force of the mill by a hydraulic screw-down control system. 2.3 AEC for skin pass mill of continuous processing line …


These shafts are becoming universal on most slitting machines. The differential shafts ensure an even tension across the full width of the material. Closed-loop control of the winding tension using feedback from load cells provides the total tension-control system required for …


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The TensileTurn CNC allows for simplified round tensile test sample preparation in seconds. The TensileTurn is a lab friendly solution for quickly and accurately preparing round tensile specimens from a variety of international standards. With our built in library of tensile specimens, you can select a common size from a list or enter your own ...


Tension control system for universal mill . United States Patent 4003230 . Abstract: A tension control system for use with a universal mill such as an H beam mill, in which a tension force in a billet, to be rolled, between roll stands is controlled so as to be maintained at zero. Providing that effective loads (Pu) are obtained by linearly ...


In industry most of the mechanical systems are controlled by PID control techniques. Research carried out in PID control methods that are applicable to active magnetic bearing (AMB) rotor systems, milling process, quadrotor, constant tension control system, magnetic leviation systems, twin-rotor MIMO systems, pilot crane, gripper, etc.


Universal Tension Controller. Air Chuck. ... Friction Chuck. Pneumatic/ Hydraulic Automatic Edge Position Control. Middle-Stage Wheel-Shaft Correcting Device. Automatic Tension Control. Magnetic-Power Brake/ Clutch. Pneumatic Through-Shaft Clutch. Product List. ... Hot Melt Coating Equipment and Compound Systems Cold glue coating and laminating ...


Lifting and Pulling Systems. A. B. Carter, Inc. offers a full line of lifting straps for the textile industry. These straps are available in three basic types to suit the tensile strength requirements on the various textile processing machines. Our lifting straps can be supplied in roll form (100 ft. rolls) or with pre-cut lengths complete with ...


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Looper and tension control, shown in Fig. 2, is important in hot strip mills because they affect both the dimensional quality and the mass flow of a strip. The high strip tension between stands induces width shrinkage, thickness reduction and moreover can produce an edge wave on a strip. However, it does make the mass flow more stable and hence ...


advised that using the axis control buttons under the Machine Control tab in UGS will set a G91. It does this every time you click one of the axis control buttons. G92 Used to create a temporary work coordinate system. This is most often used to zero out each axis so you can declare the origin of your work. For